Charging a 2027 Rivian R1S Premium Long Range (20in) at home in Oregon

In Oregon, home electricity runs 15.31¢/kWh — put a 2027 Rivian R1S Premium Long Range (20in)'s EPA-rated 42 kWh/100mi against that and 100 miles costs $6.43, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 59.9% cheaper per mile than gasoline in Oregon — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Oregon owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (20in) spend about $964 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,439 saved annually, at this mileage.

What one full charge costs

At Oregon's rate, fully covering this 2027 Rivian R1S Premium Long Range (20in)'s 380-mile EPA range costs about $24.42 (159.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium Long Range (20in) in Oregon ranks 11,188 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (20in) ranks 296 of 400 EV models for raw efficiency, and Oregon ranks 21 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1S Premium Long Range (20in) at home

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Ask a licensed Oregon electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Oregon's 15.31¢/kWh compares? The guide to charging cost by state ranks every state side by side.